| 稀土Y对6.5%Si高硅钢拉伸性能的影响 |
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| 引用本文： | 赵海斌,秦镜,刘德福,张迎晖,汪志刚.稀土Y对6.5%Si高硅钢拉伸性能的影响[J].有色金属科学与工程,2021,12(1):131-140. |
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| 作者姓名： | 赵海斌 秦镜 刘德福 张迎晖 汪志刚 |
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| 作者单位： | 江西理工大学材料冶金化学学部, 江西 赣州 341000 |
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| 基金项目： | 国家自然科学基金资助项目;江西省博士后科研择优资助项目 |
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| 摘 要： | 6.5%Si高硅钢具有高磁导率、低铁损、几乎为零的磁致伸缩等优良软磁性能, 具有广阔的应用前景。然而, 室温硬脆的B2和DO3有序结构出现阻碍了其生产和应用。文章研究了在200~800 ℃下, 稀土Y对6.5%Si高硅钢拉伸性能的影响, 利用EBSD、EPMA、XRD和TEM等技术研究了稀土Y对6.5%Si高硅钢显微组织及有序结构的影响。结果表明, 细小的Y2O3和Y2O2S等稀土化合物能够作为有效形核剂细化组织; 稀土Y的加入不仅细化了有序畴, 而且降低了有序相含量、有序度和硬度; 200~600 ℃含0.03%Y高硅钢的断裂延伸率高于无稀土高硅钢, 200~400 ℃含0.03%Y高硅钢的抗拉强度高于无稀土高硅钢, 在6.5%Si高硅钢添加稀土Y造成晶粒细化和有序度降低是其韧塑性提高的重要原因。
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| 关 键 词： | 6.5%Si高硅钢 稀土 有序度 拉伸性能 |
| 收稿时间： | 2020-09-11 |
Effect of rare earth Yttrium on the tensile properties of 6.5％Si steel |
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| ZHAO Haibin,QIN Jing,LIU Defu,ZHANG Yinghui,WANG Zhigang.Effect of rare earth Yttrium on the tensile properties of 6.5％Si steel[J].Nonferrous Metals Science and Engineering,2021,12(1):131-140. |
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| Authors: | ZHAO Haibin QIN Jing LIU Defu ZHANG Yinghui WANG Zhigang |
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| Affiliation: | Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China |
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| Abstract: | Fe-6.5 wt%Si alloy shows potential for a broad application with excellent soft magnetic properties including high permeability,low iron loss,and near-zero magnetostriction.However,brittle-ordered B2 and DO3 structures hinders its mass production and applications.In this work,the effect of Y element on the tensile properties of Fe-6.5 wt%Si alloy at 200~800℃was investigated.A detailed study of the Y element in the microstructure and ordered structure of Fe-6.5 wt%Si was carried out by EBSD,EPMA,XRD and TEM.Results showed that Y2O3 and Y2O2S precipitates as the efficient nucleation agents refined the microstructures.Adding Y not only refined the ordered domains,but also reduced the ordered phase contents,ordered degrees,and hardness.The fracture elongation of high silicon steel with 0.03%Y at 200~600℃was higher than that of high silicon steel without Y.The tensile strength of high silicon steel containing 0.03%Y was higher than that of high silicon steel without Y at 200~400℃.The grain refinement and ordered degree reduction caused by the addition of rare earth Y in Fe-6.5 wt%Si alloy were the important reasons for its improvement in ductility. |
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| Keywords: | Fe-6 5wt%Si alloy rare earth ordered degree tensile property |
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